Add support for PiKVM Switch and related features

This commit introduces several new components and improvements:
- Added Switch module with firmware update and configuration support
- Implemented new media streaming capabilities
- Updated various UI elements and CSS styles
- Enhanced keyboard and mouse event handling
- Added new validators and configuration options
- Updated Python version support to 3.13
- Improved error handling and logging

extras/media/manifest.yaml

@@ -0,0 +1,5 @@
+name: Media
+description: KVMD Media Proxy
+path: media
+daemon: kvmd-media
+place: -1

extras/media/nginx.ctx-http.conf

@@ -0,0 +1,3 @@
+upstream media {
+	server unix:/run/kvmd/media.sock fail_timeout=0s max_fails=0;
+}

extras/media/nginx.ctx-server.conf

@@ -0,0 +1,7 @@
+location /api/media/ws {
+	rewrite ^/api/media/ws$ /ws break;
+	rewrite ^/api/media/ws\?(.*)$ /ws?$1 break;
+	proxy_pass http://media;
+	include /etc/kvmd/nginx/loc-proxy.conf;
+	include /etc/kvmd/nginx/loc-websocket.conf;
+}